做化学实验要注意节约药品如果没有说明用量一般应该按最�量取用液体 毫升固体只需 实验剩余的药品要 .a.放回原瓶 B.丢弃后作为垃圾 Template




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tomski做化学实验要注意节约药品如果没有说明用量一般应该按最�量取用液体 毫升固体只需 实验剩余的药品要 coloring